How can one drive a stepper motor and control its speed using PWM from a microcontroller, since the stepper motor has more than two wires?
I just want a confirmation because I'm still confused.
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If you use bbipolar stepper motor, it has two phases, so you drive it with two PWM signals at least. In more advanced aapplications- two PWM per phase, so four. I wonder, if you know, where to connect this signals... I think, you should start with DRV8811, then you need one GPIO for direction and another one for step. No PWM rrequired.